Table 4.

Volume percentage of elements originally present on the untreated surface and elements which appear after instrumentation

(n = 5 spots/disc and tip)	Ti	Zr	O	C	fe %	te
Disc I
0	88.0 ± 13.6	0	5.4 ± 4.8	6.1 ± 8.5	Al 9.9	Ca, Si
A	83.0 ± 16.2	0	6.4 ± 2.1	1.5 ± 0.2	Fe 39.1, Cr 5.4	-
B	80.7 ± 18.3	0	9.3 ± 5.1	9.6 ± 15.3	-	Al, Ca, Si, Fe
C	86.1 ± 8.6	0	10.5 ± 5.8	3.1 ± 2.6	-	Si, Ca
D	78.1 ± 24.0	0	18.1 ± 20.5	12.0 ± 18.3	S 8, Ca 3	-
E	63.1 ± 31.7	0	7.2 ± 4.3	27.7 ± 26.5	S 6	Ca
Disc II
0	73.3 ± 11.5	12.9 ± 2.9	9.2 ± 9.2	8.7 ± 11.1	-	S, Ca
A	56.5 ± 6.6	12.6 ± 0.4	8.3 ± 5.2	1.9 ± 0.7	-	-
B	71.0 ± 15.8	12.1 ± 3.3	8.1 ± 6.3	8.3 ± 11.7	-	Ca, Al, S, Na, Si
C	78.2 ± 4.5	13.3 ± 0.7	6.8 ± 3.7	1.7 ± 0.9	-	-
D	62.3 ± 30.9	10.9 ± 5.5	6.2 ± 2.0	14.6 ± 24.2	-	-
E	38.1 ± 35.7	6.9 ± 6.6	6.2 ± 4.9	44.2 ± 33.6	S 14.0	Si, Ca
Disc III
0	74.7 ± 16.7	0	16.5 ± 9.5	2.7 ± 1.5	Al 27	Ca, Si
A	84.6 ± 9.9	0	9.0 ± 4.0	1.9 ± 0.7	Fe 9.8, Al 10.3, Cr 1.5	-
B	73.7 ± 19.2	0	10.8 ± 4.6	12.6 ± 15.2	Al 9.5	Ca, Si
C	88.5 ± 5.1	0	8.8 ± 4.0	1.9 ± 0.5	Al 5.7,	Si
D	58.1 ± 17.7	0	19.4 ± 10.3	12.8 ± 15.9	S 13, Ca 12, Al 5, Si 2.0	-
E	44.2 ± 35.4	0	17.9 ± 10.5	21.4 ± 23.3	Al 51, S 6	Ca, Na, Si
Disc IV
0	77.7 ± 2.7	13.9 ± 1.9	7.1 ± 10.2	3.3 ± 1.4	-	-
A	78.8 ± 5.3	12.3 ± 2.2	6.0 ± 3.7	1.7 ± 1.6	Fe 3.2	-
B	79.4 ± 2.2	12.9 ± 0.8	5.4 ± 2.1	2.3 ± 0.5	-	-
C	77.0 ± 4.9	14.5 ± 2.8	5.2 ± 1.7	3.1 ± 1.6	-	Fe, Ca
D	77.4 ± 3.5	12.9 ± 1.2	7.3 ± 3.3	2.4 ± 1.0	-	-
E	73.0 ± 13.4	35.0 ± 44.2	3.9 ± 0.5	7.6 ± 9.7	-	Ca, S, B

Disc I—Inicell, Disc II—SLA, Disc III—non pretreated, Disc IV—machined

0—non instrumented surface, A—steel, B—PEEK, C—titanium, D—Carbon, E—resin

Ti—Titanium, Zr—zirconium, O—oxygen, C—carbon, fe—foreign metals > 1.0%, te—traces of foreign elements